guards，把demoAuth去掉，把demoRoles用在全局APP上

src/app.module.ts

@@ -3,11 +3,21 @@ import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { PostsModule } from './modules/posts/posts.module';
 import { DemoMiddleware } from './core/middleware/demo.middleware'
+import { APP_GUARD } from '@nestjs/core';
+import { DemoRolesGuard } from './core/guards/demo-roles.guard'
+
+
 
 @Module({
   imports: [PostsModule],
   controllers: [AppController],
-  providers: [AppService],
+  providers: [
+    AppService,
+    {
+      provide: APP_GUARD,
+      useClass: DemoRolesGuard,
+    }
+  ],
 })
 export class AppModule implements NestModule {
   configure(consumer: MiddlewareConsumer) {

src/core/guards/demo-roles.guard.ts

@@ -6,6 +6,6 @@ export class DemoRolesGuard implements CanActivate {
   canActivate(
     context: ExecutionContext,
   ): boolean | Promise<boolean> | Observable<boolean> {
-    return true;
+    return false;
   }
 }

src/modules/posts/posts.controller.ts

@@ -6,7 +6,7 @@ import { DemoAuthGuard } from '../../core/guards/demo-auth.guard'
 
 
 @Controller('posts')
-@UseGuards(DemoAuthGuard)
+// @UseGuards(DemoAuthGuard)
 // @UseFilters(DemoFilter)
 export class PostsController {